Fig. 5. Expression patterns of vim, des, prph, ina, and nes in the pre-metamorphic tadpole nervous system. In situ hybridization on retinal, brain and spinal cord sections for vim (AâC), des (DâF), prph (G-I), ina (JâL), and nes (MâO). Sections were obtained from pre-metamorphic stage 50 tadpoles. Location of the lens (L), outer (O), inner (I) and ganglion (G) cell layers are indicated. Scale bars, 100 µm in A, D, G, J and M; all others are 50 µm.